From nobody Mon Feb 9 00:46:03 2026 Received: from mail-pl1-f176.google.com (mail-pl1-f176.google.com [209.85.214.176]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D3F8232D42F for ; Tue, 30 Dec 2025 18:33:12 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.214.176 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767119594; cv=none; b=otUREariE6W3nBGfRwgLcwPvGLNkVUxmmh5XgHB6a21CtdF67/6/ypxQS3Df0/WY3BAUJYGuSytvWHyWOsybfyMCtXiESju7pe84001x8H9wzo1Vc2KQ97rG0/gPzmtmVOwzmNqub4NKJMT7BZTkS2dO2uGnqzAcFGzLvG2dQq0= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767119594; c=relaxed/simple; bh=peiIl3kcZSGYDI0SYDU6pNL+X/0lARo53q7LuV+LeDI=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:To:Cc; b=fHIgE0g/o3eLIgwEZo8e2Z/c0tukC6/edvC3wHGJhrsuh+Fi49euvqccvsyUxB0TANZsRG2TpJDR1gsUe+q9XlfLJKcpkv4QIOP9Oec/871ivwRCfmXVuiTGSTfcZuAlN2gSZYcIzciYFOj7NAiv1Rw41mJoXdzDZSAjJ7HBSzA= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=Bx1SXkcj; arc=none smtp.client-ip=209.85.214.176 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="Bx1SXkcj" Received: by mail-pl1-f176.google.com with SMTP id d9443c01a7336-2a1388cdac3so94886425ad.0 for ; Tue, 30 Dec 2025 10:33:12 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1767119592; x=1767724392; darn=vger.kernel.org; h=cc:to:message-id:content-transfer-encoding:mime-version:subject :date:from:from:to:cc:subject:date:message-id:reply-to; bh=liNs4Nu20YxUTwqcdL8jR/v1sBx3Nke7g7mFbFi8pF8=; b=Bx1SXkcjrKdBp/KC2cTqZNK0A7UJhH02qAtI7di0ZT1gbhr0rjaIwaAT0J8/Lu1wPX 0WaEYdd8IAabMgqwWuJiLzdmq0qcE3nEyCILr3xX3HGHGD+PcHv8AwoaOTGnXEmqM5OM 44TRvRhOgVCArnNZw85p8vVjj25V9LCvlLSd3fUK3da2Y8IK0L3KuOabtHTbbecKAE5v 8/F5UbEv2JJLHTktVQlJyCyurbSZFEyyaYtlSpl3ukppEd7o3LRnlvWIaa3xJjJ+CfV8 8VhHlmnVzK120TV46E85n2ituiC84WzZGg2tEc3ynRxpSK4uwsSoqJeVTGKpFkYMdrP2 IVhQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1767119592; x=1767724392; h=cc:to:message-id:content-transfer-encoding:mime-version:subject :date:from:x-gm-gg:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=liNs4Nu20YxUTwqcdL8jR/v1sBx3Nke7g7mFbFi8pF8=; b=DbhFPnzsfd8gfx5FjQ5m1ZN254bYuh46ZbIQgeiNbzvcQBtnZA70k/HihBeplwEVKv CUNU7o3q1hjU6cmWuJ/vcnBaWgWoTHbLJXxmXrMWewZ3buGHLdx32aAlNZKrnqqXQN9D 9q/J6+gSvy//88Jz8/V60CpRSvvf+UNTiWX2yA3dtBvcgmG0GrfgBc5XUqiou09BwNY1 FDRZ/Q+KZ9TRiETmSOsVlkZRor1ZcsCRylp2GHDReQ37OCSkWx89p1NnzOhIwM0hWczP 3Os/Pv6+qBk5kk1YM+we71SYBbO0QifI+JaNELr5h/0jxaPMHDapxp1mDbtc6du4d5Km qmuQ== X-Forwarded-Encrypted: i=1; AJvYcCVT46A+/BN9KwN4kaFVqxSqdPO3ixWc2J02uII0sfURHXaFtbajAuuXscV73IcCw/HZycDGwnNUenwkYwo=@vger.kernel.org X-Gm-Message-State: AOJu0YxMI3eQAAGhsNKTg/Yv//fX+XgM1LRt8+2YWpDNLM4cjwLTK3yk bU8BAkYc+RTaqo5Z8/tkqQiXF4MyCLSq9Wftn/GWoVXovJxnPsk01qgD X-Gm-Gg: AY/fxX5bvfXQrf7uLEvky3Q+iQl79lOsqa55jZrC7jyy4O+G6E3emHKomWtadZSxarj vb22VW9dmG+/9K8qAay090X7NES+SYL6Ab9ADi2g3vMjK0xngECrCLeCw0newx0nZHkH0dAsXM3 z94VlpeOtWYCtaRMRjUVuS21YG1JSbRytU6f3CUur9B9CGx2AHZo6W0rYvgyQ57qVtP3/ph+HSm 45EVGk1QrDiQu5pIDiSGfl3c2AwNkxlMgo2Lk5dLX3o5TcnvGIWV2T2Y/7NXLnGFJKmYGBJQ2FD IrZveQHW8CnL7jIqDneuXiIH81X29/cniT2WJrLY3GBRVpSDI34991/SgtS8pIy8da9huffYru1 kjNfU3zMqwakPSMdQE6mvl5IOJTCbz9KFMqrSzQ6xuc2U2YRTEWG9HO3qsgQvnNgx4kCELG0vIL PilrUfak7GIlKT9a3Dkm3pmK8= X-Google-Smtp-Source: AGHT+IHfak2FfRD9VrZovrwOmes8QiGk+sY8RzvYOjUrAuZrPT3jY6+ly7bsYHkegveLW5pJZduZFg== X-Received: by 2002:a17:902:e550:b0:29f:87f3:9c22 with SMTP id d9443c01a7336-2a2f2c4cc02mr379373775ad.52.1767119592031; Tue, 30 Dec 2025 10:33:12 -0800 (PST) Received: from [127.0.1.1] ([59.188.211.98]) by smtp.googlemail.com with ESMTPSA id d9443c01a7336-2a2f3d4d87fsm302758125ad.46.2025.12.30.10.33.09 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 30 Dec 2025 10:33:11 -0800 (PST) From: Nick Chan Date: Wed, 31 Dec 2025 02:30:42 +0800 Subject: [PATCH] arm64: dts: apple: s8001: Add DWI backlight for J98a, J99a Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20251231-b4-j98a-j99a-dwi-bl-v1-1-24793c2b99fc@gmail.com> X-B4-Tracking: v=1; b=H4sIAFEaVGkC/x2MSQqAMBDAviJzdsC21u0r4qHLqCOi0oIK4t8tX gI5JA9ECkwRuuyBQCdH3rckIs/AzWabCNknB1lILaQSaEtc2sYktAb9xWhXtLpyqqi1KUcLqTw CjXz/13543w8vWX6xZQAAAA== X-Change-ID: 20251231-b4-j98a-j99a-dwi-bl-b56c3075a4fb To: Sven Peter , Janne Grunau , Neal Gompa , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: asahi@lists.linux.dev, linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Nick Chan X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=1741; i=towinchenmi@gmail.com; h=from:subject:message-id; bh=peiIl3kcZSGYDI0SYDU6pNL+X/0lARo53q7LuV+LeDI=; b=owEBbQKS/ZANAwAKAQHKCLemxQgkAcsmYgBpVBrfZDu5oRktCcjFTaRTbil7TaNMr/NVMwu9P RIiqTyoz6KJAjMEAAEKAB0WIQRLUnh4XJes95w8aIMBygi3psUIJAUCaVQa3wAKCRABygi3psUI JCfBD/4uajJFiAAk8T1F7l8vcke5uW7iQljDlvYBkbO4PCkYGYaS9JOoV/PlM9s8oD0j+RTe1zt W53+AdleMK4yl9rfxMaKoA9ZcLghAMegPCLBlyby0XrFdPUDlWwczui7N7NOino66HzpL2D6CLZ 9tnRseowYOmL1cKCSqxwbXfW9DFVp1cDZezOFXz9lOY2c3ouGcJyevE1MTOaYx6arVHJ8/e3eXU FLTLCtoAQ8MexqmffRzwxOP9FBZoiEDQqDGi3dD2McnwNuC7oIXNnoxh2J6tI/xTVJ67IjhBwLW y+CfruiuZ++/6Bqx3eVWO6mBdU1ghsACYLvyS8Y/LG4ylfO0NeBUGFEGQnYc8T12SkuLLpD1ToM FqgquhS8lChUcPmr/Hau75eocJD5dpQoUbGKqUjRilxXIU0c+xAi27HFqqw1fY6Ns00o6yuDg4J S7rRh4zSoKcvTV1N3xKyno+QUrFZnTge8CCSFh6WIUsR+zIZ0ClyaJiP1Ca56s564IEhGmZm9Lh kB3RkfssnVO3hlSouoSLDxd+mg2tuefHds9qmR5iqBLjdS3jsdfFqhN2ie7IHg79ZMEznEATpVT nY8GwKT9RJGaC/hai0CcnKJRJFW4LWEq9J66arLAU3Ex5r3MentJrQ89Pv3dKBs2ONbFRd9B+li WjHqgkSjTawFH0g== X-Developer-Key: i=towinchenmi@gmail.com; a=openpgp; fpr=4B5278785C97ACF79C3C688301CA08B7A6C50824 iPad Pro (12.9-inch) uses DWI backlight, while the 9.7-inch model does not. Add DWI backlight node for s8001 and enable it for J98a and J99a. Signed-off-by: Nick Chan --- arch/arm64/boot/dts/apple/s8001-j98a-j99a.dtsi | 4 ++++ arch/arm64/boot/dts/apple/s8001.dtsi | 7 +++++++ 2 files changed, 11 insertions(+) diff --git a/arch/arm64/boot/dts/apple/s8001-j98a-j99a.dtsi b/arch/arm64/bo= ot/dts/apple/s8001-j98a-j99a.dtsi index e66a4c1c138fe82dcdd652d4d56a8f4583f660cb..67633c56a7238983517b36ba319= a704424be07c5 100644 --- a/arch/arm64/boot/dts/apple/s8001-j98a-j99a.dtsi +++ b/arch/arm64/boot/dts/apple/s8001-j98a-j99a.dtsi @@ -9,6 +9,10 @@ * Copyright (c) 2024, Nick Chan */ =20 +&dwi_bl { + status =3D "okay"; +}; + &ps_dcs4 { apple,always-on; /* LPDDR4 interface */ }; diff --git a/arch/arm64/boot/dts/apple/s8001.dtsi b/arch/arm64/boot/dts/app= le/s8001.dtsi index b5b00dca6ffa4caa1d504860693da001a8ced80e..209c7dd19b7c289096e22b3c86a= 825c53d19a78f 100644 --- a/arch/arm64/boot/dts/apple/s8001.dtsi +++ b/arch/arm64/boot/dts/apple/s8001.dtsi @@ -209,6 +209,13 @@ aic: interrupt-controller@20e100000 { power-domains =3D <&ps_aic>; }; =20 + dwi_bl: backlight@20e200080 { + compatible =3D "apple,s8000-dwi-bl", "apple,dwi-bl"; + reg =3D <0x2 0x0e200080 0x0 0x8>; + power-domains =3D <&ps_dwi>; + status =3D "disabled"; + }; + pinctrl_ap: pinctrl@20f100000 { compatible =3D "apple,s8000-pinctrl", "apple,pinctrl"; reg =3D <0x2 0x0f100000 0x0 0x100000>; --- base-commit: 8f0b4cce4481fb22653697cced8d0d04027cb1e8 change-id: 20251231-b4-j98a-j99a-dwi-bl-b56c3075a4fb Best regards, --=20 Nick Chan